- Operating Principle: Step-over Turning Method
- Geometry Definition and Automated Calculations
- Tool Definition and Preparation
- Cutting Strategy and Technological Parameters
- Multi-start Worms and the “Q” Parameter (Mazak Specifics)
- Handling Workpieces Without Undercuts (Entry/Exit Motion)
- Finishing Strategy and Corrections
- Coordinate Systems and Safety (EIA/ISO vs. Mazatrol)
- Project Management and NC Code Generation
Finishing Strategy and Corrections
Estimated reading: 2 minutes
The precision of the worm depends on proper allowance management and tooth thickness control. EvoSpline grants you full control over these parameters by separating roughing and finishing operations.
Depth and Allowance Parameters
These three values define how much material the tool removes during each pass in the X-axis (radially):
- Roughing depth: The radial depth increment for each pass during the bulk material removal phase.
- Finishing depth: The radial depth increment reserved for the smoothing (finish) passes.
- Finishing allowance: The amount of material left on the profile after roughing is complete. This allowance is maintained if you select the Without finishing or For grinding options.
Tooth Thickness Correction
This parameter is completely independent of the depths mentioned above. It allows you to „shift” the theoretical profile of the worm to achieve a perfect fit with the worm gear:
- Positive Value (+): -> The tooth is thicker.
- Negative Value (-): -> The tooth is thinner.
Operation Modes (Checkboxes)
Selecting the right mode allows you to optimize the production process, especially for hardened parts:
- Without finishing: The program generates code only up to the point where the Finishing allowance remains. Important: In this mode, the tooth tips (outer edges) will not be rounded. This is ideal for rapid material removal before a tool change.
- Only finishing: The program skips the bulk removal phase and performs only the final passes based on the remaining allowance. In this mode, the full rounding of the tooth tips is executed.
- For grinding: A specialized mode for parts requiring grinding after heat treatment.
- The tool performs the roughing operation.
- The flank allowance is maintained (for the grinder).
- NOTE: The program automatically performs the final rounding of the outer tooth tips. This means the grinding wheel doesn’t have to deal with sharp corners, drastically extending the life of the grinding wheel.